Linking boost::thread

Question

I'm trying to learn something with boost libraries, but I get a problem when I try to compile something that includes boost::threads. I get an error during linking, this is the message:

/usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lboost-thread

But it's strange because this happens only when I compile with a normal user, using root I can compile with no problem.

Thanks in advance.

Answer 1

Include

#include <boost/thread/thread.hpp>

Other Linker Flags

-lboost_system -lboost_thread-mt

Answer 2

check the lib name in boost install path (default: /usr/lib/), if it's libboost_thread.so, add -lboost_thread. Don't forget to specify the path to boost directory with -L/usr/lib/boost. If it only work as root, check your privilege in this directory :

ls -la /usr/lib/ | grep boost

you should see your login, and rw_r_r_ (check you have the read permission).

If you have this permission on the directory and on the boost lib, linking with gcc can be done :

g++ obj.o obj2.o -L/usr/lib -lboost_thread

if you don't own files or don't have read permissions, log as root and add them

chown -R /usr/lib <your login>
chmod +r /usr/lib/lib*.so